參數(shù)資料
型號: LT1920I
廠商: Linear Technology Corporation
元件分類: 運(yùn)動控制電子
英文描述: Precision Instrumentation Amplifier
中文描述: 精密儀表放大器
文件頁數(shù): 2/12頁
文件大?。?/td> 329K
代理商: LT1920I
2
LT1920
ABSOLUTE
AXI
U
RATIU
W
W
W
ORDER PART
NUMBER
PACKAGE/ORDER I
FOR
ATIO
W
U
U
LT1920CN8
LT1920CS8
LT1920IN8
LT1920IS8
S8 PART MARKING
1920
1920I
1
2
3
4
8
7
6
5
TOP VIEW
R
G
–IN
+IN
–V
S
R
G
+V
S
OUTPUT
REF
N8 PACKAGE
8-LEAD PDIP
S8 PACKAGE
8-LEAD PLASTIC SO
+
T
JMAX
= 150
°
C,
θ
JA
= 130
°
C/W (N8)
T
JMAX
= 150
°
C,
θ
JA
= 190
°
C/W (S8)
(Note 1)
Supply Voltage ......................................................
±
20V
Differential Input Voltage (Within the
Supply Voltage) .....................................................
±
40V
Input Voltage (Equal to Supply Voltage) ................
±
20V
Input Current (Note 3) ........................................
±
20mA
Output Short-Circuit Duration..........................Indefinite
Operating Temperature Range................ –40
°
C to 85
°
C
Specified Temperature Range
LT1920C (Note 4)....................................0
°
C to 70
°
C
LT1920I.............................................. –40
°
C to 85
°
C
Storage Temperature Range................. –65
°
C to 150
°
C
Lead Temperature (Soldering, 10 sec)..................300
°
C
Consult factory for Military grade parts.
ELECTRICAL CHARACTERISTICS
V
S
=
±
15V, V
CM
= 0V, T
A
= 25
°
C, R
L
= 2k, unless otherwise noted.
SYMBOL
G
PARAMETER
Gain Range
Gain Error
CONDITIONS (Note 6)
G = 1 + (49.4k/R
G
)
G = 1
G = 10 (Note 2)
G = 100 (Note 2)
G = 1000 (Note 2)
G < 1000 (Note 2)
V
O
=
±
10V, G = 1
V
O
=
±
10V, G = 10 and 100
V
O
=
±
10V, G = 100 and 1000
V
OST
= V
OSI
+ V
OSO
/G
G = 1000, V
S
=
±
5V to
±
15V
G = 1000, V
S
=
±
5V to
±
15V
(Note 3)
G = 1, V
S
=
±
5V to
±
15V
G = 1, V
S
=
±
5V to
±
15V
(Note 3)
MIN
1
TYP
MAX
10k
0.1
0.3
0.3
0.35
50
UNITS
0.008
0.010
0.025
0.040
20
10
10
20
%
%
%
%
G/T
Gain vs Temperature
Gain Nonlinearity (Note 5)
G
ppm/
°
C
ppm
ppm
ppm
30
V
OST
V
OSI
Total Input Referred Offset Voltage
Input Offset Voltage
30
125
185
1
1000
1500
15
1
2
μ
V
μ
V
G
V
OSI
/T
V
OSO
Input Offset Drift (RTI)
Output Offset Voltage
G
μ
V/
°
C
400
μ
V
μ
V
G
V
OSO
/T
I
OS
I
B
e
n
Output Offset Drift
Input Offset Current
Input Bias Current
Input Noise Voltage, RTI
G
5
μ
V/
°
C
0.3
0.5
2.00
0.50
0.28
nA
nA
0.1Hz to 10Hz, G = 1
0.1Hz to 10Hz, G = 10
0.1Hz to 10Hz, G = 100 and 1000
μ
V
P-P
μ
V
P-P
μ
V
P-P
Total RTI Noise =
e
ni2
+ (e
no
/G)
2
e
ni
Input Noise Voltage Density, RTI
e
no
Output Noise Voltage Density, RTI
i
n
Input Noise Current
Input Noise Current Density
R
IN
Input Resistance
C
IN(DIFF)
Differential Input Capacitance
f
O
= 1kHz
f
O
= 1kHz
f
O
= 0.1Hz to 10Hz
f
O
= 10Hz
V
IN
=
±
10V
f
O
= 100kHz
7.5
67
10
124
200
1.6
nV/
Hz
nV/
Hz
pA
P-P
fA/
Hz
G
pF
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